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公开(公告)号：US12105125B2
公开(公告)日：2024-10-01
申请号：US16757639
申请日：2019-08-13
Applicant: Topcon Positioning Systems, Inc.
Inventor： Andrey V. Veitsel , Pavel V. Kalmykov , Igor A. Orlovsky , Victor A. Prasolov , Evgeny N. Sidorov
IPC: G01R23/167 , H04K3/00
CPC classification number: G01R23/167 , H04K3/90
Abstract: Digital anti-jam apparatus includes a CPU; N spectrum analysis and band rejection (SABR) modules, each receiving a digital quadrature signal input, outputting a spectral data output, and outputting a quadrature output with interference band rejected; the CPU first places the SABR modules into a spectral analysis (SA) mode, and upon detection of interference, places the SABR modules into a band rejection (BR) mode while the interference continues; N N-to-1 multiplexers, whose quadrature outputs are connected to corresponding SABR modules, wherein the CPU controls whether to connect an input of each multiplexer either to the quadrature signal input or to the quadrature band-reject output of any other SABR module; a (N+1)-to-1 multiplexer, connected to the quadrature signal input or to the quadrature output of any SABR module; and a frequency conversion module, that receives output of the (N+1)-to-1 multiplexer and shifts a spectrum of the digital quadrature signal input.
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公开(公告)号：US20240087278A1
公开(公告)日：2024-03-14
申请号：US18255684
申请日：2022-04-07
Applicant: Topcon Positioning Systems, Inc.
Inventor： Mikhail Yurievich VOROBIEV
CPC classification number: G06V10/225 , G06T7/73 , G06V20/56 , G06T2207/10012 , G06T2207/30252
Abstract: A method and apparatus for determining a position and attitude of a marker having encoded information includes the step of acquiring an image of a marker by a stereo camera. A center of the marker is determined and then a position of the marker is determined based on the center of the marker. A plurality of vertices on the marker about the center of the marker are then determined. Using the plurality of vertices, a pitch, roll, and heading of the marker are determined. An attitude of the marker is determined based on the pitch, roll, and heading of the marker. The method and/or apparatus for determining a position and attitude of a marker can be used in various applications to determine the position and attitude of objects on which the marker is located.
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公开(公告)号：US11909109B2
公开(公告)日：2024-02-20
申请号：US17595312
申请日：2021-04-23
Applicant: Topcon Positioning Systems, Inc.
Inventor： Andrey Vitalievich Astakhov , Pavel Petrovich Shamatulsky , Anton Pavlovich Stepanenko , Sergey Nikolaevich Yemelianov
CPC classification number: H01Q1/523 , H01Q1/241 , H01Q9/0435 , H01Q21/0025 , H01Q1/1214 , H01Q1/3275
Abstract: A combined cellular/GNSS (global navigation satellite systems) antenna is provided. The combined cellular/GNSS antenna comprises an external area and an internal area delineated by a circumference of a circle. The combined cellular GNSS antenna further comprises a cellular antenna and a GNSS antenna. The cellular antenna comprises a set of cellular radiators disposed in the external area and connected to a cellular feeding network for excitation of the set of cellular radiators. The GNSS antenna comprises radiation elements disposed in the internal area and has a center located substantially at a center of the circle.
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公开(公告)号：US11846091B2
公开(公告)日：2023-12-19
申请号：US16976480
申请日：2020-01-28
Applicant: Topcon Positioning Systems, Inc.
Inventor： Mikhail Yurievich Vorobiev , Alexey Vladislavovich Zhdanov , Ivan Alexandrovich Bogdanyuk , Nikolay Nikolaevich Vasilyuk
IPC: E02F9/26 , E02F3/76 , E02F9/02 , G01S19/52 , G01S19/47 , G06T7/70 , H04N13/254 , G06T7/20 , G06T7/50 , E02F3/80 , H04N13/00
CPC classification number: E02F9/264 , E02F3/7609 , E02F3/80 , E02F9/02 , E02F9/26 , G01S19/47 , G01S19/52 , G06T7/20 , G06T7/50 , G06T7/70 , H04N13/254 , G06T2207/10012 , G06T2207/10048 , G06T2207/30204 , G06T2207/30252 , H04N2013/0085
Abstract: A system and method are provided for determining the position and orientation of an implement on a work machine in a non-contact manner using machine vision. A 3D camera, which is mounted on the vehicle with a field of view that includes components on the implement (e.g., markers in some examples), determines a three-dimensional position in a local coordinate system of each of the components. A global positioning system in cooperation with an inertial measurement unit determines a three-dimensional position and orientation of the 3D camera in a global coordinate system. A computing system calculates a three-dimensional position in the global coordinate system for the components using the local three-dimensional positions of the components and the global three-dimensional position and orientation of the 3D camera. The position and orientation of the implement can then be calculated based on the calculated global three-dimensional positions of the components.
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公开(公告)号：US11828040B2
公开(公告)日：2023-11-28
申请号：US16585662
申请日：2019-09-27
Applicant: Topcon Positioning Systems, Inc.
Inventor： Vernon Joseph Brabec
Abstract: A method for machine grade assist includes determining whether user input will cause an implement of a machine to dig below a desired grade. User input to move a stick of an excavator can be blocked and/or delayed using hydraulic pressure so that movement of both the stick and the boom of the excavator can be synchronized to prevent a bucket of the excavator from digging below a desired grade when the stick is moved.
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Patent Agency Ranking
公开(公告)号：US11738252B2
公开(公告)日：2023-08-29
申请号：US17321540
申请日：2021-05-17
Applicant: Topcon Positioning Systems, Inc.
Inventor： Raymond M. O'Connor , Kyle Snow , Xiankun Wang
CPC classification number: A63B71/0619 , A63B24/0021 , G01C11/06 , G06T7/74 , A63B2024/0053 , A63B2071/0691 , A63B2220/05 , A63B2220/13 , A63B2220/20 , A63B2220/807 , A63B2220/89
Abstract: A method and apparatus for determining the precise location of a target on a surface by utilizing a plurality of objects that are fixed in their position proximate to the location, thereby constituting a plurality of fixed reference points, upon which the target(s) resides or is otherwise located. The plurality of fixed references points are used either in conjunction with images of the target or certain distance measurements between the target and the fixed reference points to determine the precise location of the target(s) on the surface.
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公开(公告)号：US11681009B1
公开(公告)日：2023-06-20
申请号：US17437287
申请日：2021-01-13
Applicant: Topcon Positioning Systems, Inc.
CPC classification number: G01S5/0218 , G01S5/0226 , G01S5/10
Abstract: Method of reducing multipath effects on phase measurements, including receiving radio signals with different pseudo-random codes transmitted by at least four base stations, each at particular frequency received by one channel; measuring delay difference and phase difference from different pairs of base stations; calculating a current position of the receiver based on the measured phase differences and delay differences, wherein the base stations differ in pseudo-random codes at same frequencies or differ in carrier frequency or polarization type if using the same pseudo-random codes, and wherein a number of channels in the receiver exceeds a number of channels needed for the calculating of the current position; detecting anomalous jumps in phase of one or more channels, based on first or second derivative of the phase, as being indicative of multipath signal reception; removing those channels from calculation of current position; and calculating current position based on remaining channels.
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8.发明授权公开(公告)号：US11609346B2
公开(公告)日：2023-03-21
申请号：US16092114
申请日：2018-05-29
Applicant: Topcon Positioning Systems, Inc.
Inventor： Nikolay Nikolaevich Vasilyuk , Mikhail Yurievich Vorobiev , Dmitry Konstantinovich Tokarev , Alexandr Vladimirovich Doronin , Sergey Ivanovich Tychinskiy
Abstract: Determining vehicle orientation based on GNSS signals received by three antennas that are logically combined into two pairs, with one antenna common for both pairs. GNSS receiver measures first carrier phase difference within each pair of antennas, represented as sum of an integer number of periods of the carrier frequency and a fractional part of the period. The fractional parts are used to compute orientation of the vector connecting the antennas phase centers within each pair, excluding integer ambiguity resolution. Vehicle attitude is calculated from the orientation of two non-collinear vectors with a common origin, measured by two pairs of antennas. Each antenna has an RF front end. All RF front ends, heterodynes, digital navigation processors of this receiver are clocked from one common clock oscillator. All carrier phase measurements of the three antennas are performed on a common time scale.
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公开(公告)号：US11549800B2
公开(公告)日：2023-01-10
申请号：US16821855
申请日：2020-03-17
Applicant: Topcon Positioning Systems, Inc.
Inventor： Nikolay V. Khatuntsev
Abstract: A self-leveling laser transmitter is provided. The laser transmitter comprises a rotation head and an accelerometer mounted on the rotation head. An acceleration signal is received from the accelerometer and one or more tilt adjustment signals for adjusting a tilt of the rotation head to a leveled orientation are generated based on the acceleration signal. One or more actuators adjust the tilt of the rotation head based on the one or more tilt adjustment signals.
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公开(公告)号：US20220195693A1
公开(公告)日：2022-06-23
申请号：US17125967
申请日：2020-12-17
Applicant: Topcon Positioning Systems, Inc.
Inventor： Shahab KALANTAR , Dmytro POPLAVSKIY
IPC: E02F3/84
Abstract: Systems and methods for adjusting a height of an implement mounted on a body of a vehicle as the vehicle travels over a terrain are provided. Sensor data is received from a set of sensors disposed on the vehicle. A trajectory associated with the vehicle is determined based on the received sensor data. A profile of the terrain is estimated based on the determined trajectory associated with the vehicle. A ditch is detected in the terrain and compensation values for adjusting the height of the implement are determined based on the estimated profile of the terrain to compensate for the detected ditch. One or more control signals are transmitted to one or more actuators for adjusting the height of the implement based on the determined compensation values.
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